pyleecan.Classes.Skew module

Method code available at https://github.com/Eomys/pyleecan/tree/master/pyleecan/Methods/Machine/Skew

class Skew(type_skew=None, rate=1, is_step=True, function=None, angle_list=None, z_list=None, Nstep=None, angle_overall=None, init_dict=None, init_str=None)[source]

Bases: FrozenClass

Class for the skew (rotor or stator)

VERSION = 1
comp_angle()

Compute skew angles and positions :param self: a Skew object :type self: Skew

comp_pattern(is_reverse_z=False, is_reverse_angle=False)

Compute skew pattern by duplicating points in case of stepped skew

Parameters:

  • self (Skew) – a Skew object

  • is_reverse_z (bool) – True to reverse slice position

  • is_reverse_angle (bool) – True to reverse slice angle

Returns:

  • angle_list (list) – list of skew angles

  • z_list (list) – list of slice positions

plot(fig=None, ax=None, lam_name='', is_show_fig=False, save_path=None, win_title=None)

Plots skew angle

Parameters:

self (Skew) – a Skew object

save(save_path='', is_folder=False, type_handle_old=2, type_compression=0)

Save the object to the save_path

Parameters:

  • self – A pyleecan object

  • save_path (str) – path to the folder to save the object

  • is_folder (bool) – to split the object in different files: separate simulation machine and materials (json only)

  • type_handle_old (int) – How to handle old file in folder mode (0:Nothing, 1:Delete, 2:Move to “Backup” folder)

  • type_compression (int) – Available only for json, 0: no compression, 1: gzip

get_logger()

Get the object logger or its parent’s one

Parameters:

obj – A pyleecan object

Returns:

logger – Pyleecan object dedicated logger

Return type:

logging.Logger

compare(other, name='self', ignore_list=None, is_add_value=False)[source]

Compare two objects and return list of differences

as_dict(type_handle_ndarray=0, keep_function=False, **kwargs)[source]

Convert this object in a json serializable dict (can be use in __init__). type_handle_ndarray: int

How to handle ndarray (0: tolist, 1: copy, 2: nothing)

keep_functionbool

True to keep the function object, else return str

Optional keyword input parameter is for internal use only and may prevent json serializability.

copy()[source]

Creates a deepcopy of the object

property type_skew

Type of skew (“linear”, “vshape”, “function”, “user-defined”)

Type:

str

property rate

Skew rate expressed in terms of slot pitch (stator slot pitch for SCIM, rotor slot pitch for PMSM)

Type:

float

property is_step

True to define skew as steps

Type:

bool

property function

Function which describes skew pattern

Type:

function

property angle_list

List of skew angles

Type:

list

property z_list

List of z axis positions for which skew angles are given

Type:

list

property Nstep

Number of steps if step skew

Type:

int

Min:

2

property angle_overall

Overall skewing angle

Type:

float

Min:

0